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Posts by terence

cover of the book "Bayesian Workflow" by Gelman, Vehtari, et al. Coming out later this year, in the summer probably.

cover of the book "Bayesian Workflow" by Gelman, Vehtari, et al. Coming out later this year, in the summer probably.

I would have preferred to have the "draw the rest of the owl" meme on the cover, but this will do. Seems like it is on schedule, and we'll leave some typos so you know we didn't write it with AI.

2 weeks ago 376 57 12 8
A screenshot of QGIS showing a monochrome raster, overlaid with yellow polygon outlines. The window for the zonal statistics tool can be seen.

A screenshot of QGIS showing a monochrome raster, overlaid with yellow polygon outlines. The window for the zonal statistics tool can be seen.

A monochrome raster that shows very fuzzy patches of white and grey. Atop it is a red outline of the state of Michigan.

A monochrome raster that shows very fuzzy patches of white and grey. Atop it is a red outline of the state of Michigan.

New tutorial post on the blog: "Urban Relativity," discussing my method for comparing city populations with their surroundings, which I sometimes use to help decide which cities to show on a map, and which to leave off. somethingaboutmaps.wordpress.com/2026/03/23/u...

4 weeks ago 13 5 2 0

Was going to mention revisiting GLSL and the shadr package but of course you already did

1 month ago 2 0 1 0

Reading @tylermw.com's new post on the latest rayverse update.

Best lines so far:

"...a cartel of cartographers formed an illumination illuminati to plot an influence campaign so you would understand their plots."

"...in effect, all terrain maps are pretending to be Norwegian."

😂

1 month ago 9 0 1 0
Video

1/5‼️Gigantic new #rayverse update + blog post! Introducing {skymodelr}: render 3D scenes in #RStats with realistically-lit skies 🌇 at a given location, using just a latitude, longitude, and a time.

Blog:
www.tylermw.com/posts/rayver...

Github:
github.com/tylermorganw...

Site:
www.skymodelr.com

1 month ago 49 12 3 2
A visualisation of the population of nine French cities

A visualisation of the population of nine French cities

Introducing population tiles of France.

#rayshader adventures, an #rstats tale

1 month ago 28 4 0 0
A visualisation of the rivers of the Danube basin

A visualisation of the rivers of the Danube basin

Did this a while back but forgot to share: the Danube basin.

#rayshader adventures, an #rstats tale

1 month ago 20 5 0 0
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A visualisation of the rivers of the Paraná basin

A visualisation of the rivers of the Paraná basin

The Paraná basin.

#rayshader adventures, an #rstats tale

2 months ago 15 1 0 1
Video

Average monthly precipitation of the world, 1970–2000

#rayshader adventures, an #rstats tale

2 months ago 18 5 0 0
A visualisation of the rivers of the Yangtze basin

A visualisation of the rivers of the Yangtze basin

Today's basin is the Yangtze.

#rayshader adventures, an #rstats tale

2 months ago 16 1 0 0
Video

Average monthly precipitation of Japan, 1970–2000.

#rayshader adventures, an #rstats tale

2 months ago 16 2 0 0
A visualisation of the rivers of the Mekong basin

A visualisation of the rivers of the Mekong basin

Another day, another basin: the Mekong basin.

#rayshader adventures, an #rstats tale

2 months ago 19 4 0 0
A visualisation of the rivers of the Mississippi basin

A visualisation of the rivers of the Mississippi basin

The Mississippi basin.

#rayshader adventures, an #rstats tale

2 months ago 47 7 3 2

Thank you!

2 months ago 1 0 0 0
A visualisation of a segment of the Duchesne river

A visualisation of a segment of the Duchesne river

A visualisation of a segment of the Sevier river

A visualisation of a segment of the Sevier river

#30DayMapChallenge · Day Thirteen · A new tool. Visualisations of segments of the Duchesne (left) and Sevier (right) rivers, inspired and made possible by @geo_coe (who wrote a wonderful set of tutorials in QGIS) and @OpenTopography.

1 year ago 69 6 3 1
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A visualisation of the rivers of the Nile basin

A visualisation of the rivers of the Nile basin

The Nile basin.

#rayshader adventures, an #rstats tale

2 months ago 15 4 1 0

Thanks! I've played with this; it's fun!

2 months ago 2 0 0 0
A visualisation of Australia's power lines

A visualisation of Australia's power lines

Power lines (OSM and derived) of Australia.

#rayshader adventures, an #rstats tale

2 months ago 14 1 0 0
A visualisation of the rivers of the Colorado basin

A visualisation of the rivers of the Colorado basin

The Colorado basin.

#rayshader adventures, an #rstats tale

2 months ago 32 8 0 0

Love it! From a hires DEM?

2 months ago 2 0 1 0
A visualisation of the rivers of the Congo basin

A visualisation of the rivers of the Congo basin

The Congo basin.

#rayshader adventures, an #rstats tale

2 months ago 44 10 2 1
A visualisation of the rivers of the Ganges-Brahmaputra basin

A visualisation of the rivers of the Ganges-Brahmaputra basin

The Ganges–Brahmaputra basin. Have another version that includes even more rivers but that's taking forever.

#rayshader adventures, an #rstats tale

2 months ago 19 5 1 0
A visualisation of the rivers of the Amazon basin

A visualisation of the rivers of the Amazon basin

The Amazon basin. Been wanting to do this for a while and finally managed to fix the errors I was getting.

I rather like how it turned out.

#rayshader adventures, an #rstats tale

2 months ago 21 5 2 0
A visualisation of Vietnam's power lines

A visualisation of Vietnam's power lines

Power lines (OSM and derived) of Vietnam.

#rayshader adventures, an #rstats tale

2 months ago 13 2 0 0
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A visualisation of Thailand's power lines

A visualisation of Thailand's power lines

Power lines (OSM and derived) of Thailand.

#rayshader adventures, an #rstats tale

2 months ago 21 3 1 0
A visualisation of Portugal's power lines

A visualisation of Portugal's power lines

Power lines (OSM and derived) of Portugal (minus Madeira and the Azores).

#rayshader adventures, an #rstats tale

2 months ago 8 0 0 1
A visualisation of Australia's freshwater ecoregions

A visualisation of Australia's freshwater ecoregions

Freshwater ecoregions of Australia.

#ggplot2 adventures, an #rstats tale

2 months ago 12 1 0 0
A visualisation of Africa's freshwater ecoregions

A visualisation of Africa's freshwater ecoregions

Freshwater ecoregions of Africa.

#ggplot2 adventures, an #rstats tale

2 months ago 27 2 2 1
A visualisation of Romania's power lines

A visualisation of Romania's power lines

Power lines (OSM and derived) of Romania.

#rayshader adventures, an #rstats tale

2 months ago 20 4 1 0
A visualisation of Hunter Mountain's ski pistes

A visualisation of Hunter Mountain's ski pistes

Did this last week but never shared: a profile of Hunter Mountain's ski pistes. Should I do more? This was just a test of an idea. Might choose a mountain in Europe or Japan next time.

#ggplot2 adventures, an #rstats tale

2 months ago 33 5 1 0